The Edward Harden Mansion, also known as Broad Oaks, is a historic home located on North Broadway (U.S. Route 9) in Sleepy Hollow, New York, United States, on the boundary between it and neighboring Tarrytown. It is a brick building in the Georgian Revival style designed by Hunt & Hunt in the early 20th century, one of the few mansions left of many that lined Broadway in the era it was built. Also on the property is a wood frame carriage house that predates it slightly. Both buildings were listed on the National Register of Historic Places in 2003.